American Geosciences Institute
American Geosciences Institute: Earth Science Week: What's Down There?
Students build a model to learn about the cycle of erosion and deposition by water and wind which deposits layer upon layer of rock, soil, and organic material to the surface.
Globio
Glossopedia: Rockhopper Penguins
Rockhopper penguins live in steep, rocky places. The only way they can get around on land is to hop from rock to rock. Rockhoppers grow about 46 cm tall - almost as high as an adult's knee. They are the smallest of the crested penguins....